8 studies were included in this review of vibrational stimulus to accelerate orthodontic treatment. The studies were small and of short duration providing very low quality evidence to support any effect. Further high quality studies of longer duration are needed.

With orthodontic treatment lasting typically 18-24 months, adjunts to accelerate tooth movements would be welcome. This Cochrane review identified two RCTs on non-surgical interventions to accelerate orthodontic treatment. However, both studies were at high risk of bias, so we cannot rely on their findings.